Measuring resistivity changes from within a first cased well to monitor fluids injected into oil bearing geological formations from a second cased well while passing electrical current between the two cased wells
A.C. current is conducted through geological formations separating two cased wells in an oil field undergoing enhanced oil recovery operations such as water flooding operations. Methods and apparatus are disclosed to measure the current leakage conducted into a geological formation from within a first cased well that is responsive to fluids injected into formation from a second cased well during the enhanced oil production activities. The current leakage and apparent resistivity measured within the first cased well are responsive to fluids injected into formation from the second cased well provided the distance of separation between the two cased wells is less than, or on the order of, a Characteristic Length appropriate for the problem.
- Research Organization:
- ParaMagnetic Logging, Inc. (Bothell, WA)
- DOE Contract Number:
- FG06-84ER13294
- Assignee:
- Para Magnetic Logging, Inc. (Woodinville, WA)
- Patent Number(s):
- US 5187440
- OSTI ID:
- 868665
- Country of Publication:
- United States
- Language:
- English
Using Resistivity Measurements To Determine Distance Between Wells
|
journal | June 1972 |
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